Lumber carrier



Feb. 22, 1927.

I 1,618,330 C. F. GERLlNGER LUMBER CARR I ER Filed Aug. 18. 1925 4Sheets-Sheet l C. F. GERLINGER LUMBER CARRIER Feb. 22, 1927. I ,618,330

Filed Auz. 18, 1925 4 Sheets-Sheet 2 1927' c. F. GERLINGER LUMBERCARRIER Filed Aug. 18. 19 .5

4 Sheets-Sheet 5 c. F. GERLINGER LUMBER CARRIER Filed Aug. 18. 1926 4Sheets-Sheet 4 Patented eb. 22, 1927.

UNITED STATES CARL F. GERLINGER, 01 DALLAS, OREGON.

LUMBER CARRIER.

Application filed August 18; 1926. Serial No. 130,042.

The invention relates to vehicles and. has special reference to a lumbercarrier having hydraulic lift means.

More especially the invention relates to improvements in the lumbercarriers'illustrated and described in my prior U. S. Patent 1,480,257,date January 8, 1924, and in m copending U. -S. application 69,435,filed oveinber 16, 1925.

The principal ob'ects of this invention, like those in the a oresaidapplication are to eliminate the plurality of cylinders used in theaforesaid patent, to do away with piping complications resultingtherefrom, to ensure even hoist at each end and side of the loadsupporting part of the carrier, and to provide a single hydrauliccylinder for accomplishing these various purposes.

Further important objects of the present invention are to provide anovel arrangement of the hydraulic cylinder whereby the parts may be soproportioned as to permit a suitable lift bein given the load with ashort stroke cylinder; to provide a novel and improved gear arranged forconnecting the piston rod of the h draulic cylinder to the load carryingmem ers; to provide an arrangement of load lifting means wherein theload carrier will be supported by members which may be so positioned inassembling the device that the load carrier will be parallel to thewheel base, the lifting means being capable of adjustment for this end;and to provide an improved general youstruction of a lumber carrier ofthis type.

lVith the above and other objects in view as will be hereinafterapparent, the invention consists in general of certain novel details' ofCOHSllllCtlOll and combinations of parts hereinafter fully descrila-d.illustrated in the accompanying drawings and specifically claimed.

In the accompanying drawings like characters of reference indicate likeparts in the several views, and:

Figure 1 is a plan view of the device. Figure 2 is a side elevationthereof. Figure 3 is an end elevation thereof. Figure 4 is a detailsection through the pump used herewith.

Figure 5 is a detail longitudinal section through the hydrauliccylinder.

Figure 6 is a detail section on the line 66 of Figure 1 showing the rackand segment drive for the lifting gear.

Figure 7 is a detail section on the line 77 of Figure 1 showing the loadsupport ing links and their connections.

In the present embodiment of the inven tion there is-shown a chassiscomposed of an upper frame 10 and a lower frame 11 which are connectedtogether by braces. At the forward end of this chassis there is providedthe usual wheel 13 on each side and at the rear end there are providedsimilar wheels 14. These wheels are connected to the chassis by means ofthe spring supports 15 described in the prior application and, the rearwheels are driven by the previously described device comprising the rearsprockets 16, chain '17, sprocket wheels 18, chain 19 and sprocket wheel20 which is driven from the engine 21.

Mounted on top of the chassis is a cylinder 22 wherein is mounted apiston 23 to which is connected a. piston rod 24 extending out throughthe usual stuffin box 25. This rod is screwed into a. rack T381 26, alock nut 27 being employed to prevent accidental disengagement. At eachside of the chassis, on top thereof, is a pair 0f aligned bearings 28which are positioned at the ends of said chassis. bearings on the leftside of the chassis extends a long shaft 29 on which is mounted a gearsegment 30 which is held by some suitable fastening means, as by the setscrew 31. versely of the machine and is located adjacent the rear endthereof. In each of the remaining bearings 28 there is journalled a stubshaft 112 and, extending inwardly from the ends of the shaft :25) andthe stub shafts 32. are segmental gears 33 which mesh together so thatrevolution of the shaft 29 causes similar but. opposite. revolution ofthe shafts 3:2. At 33 1s a liquid reservoir which is connected by apiping 34 with a.

rotary pump 35 having a pair of toothed impellers 36. From the top ofthis pump is a pipe 37 provided with a check valve 38 opening away fromthe pump which leads to a controllin g valve 30 having a handle 40. Fromthis controlling valve pipes 41 lead to opposite ends of the cylinder22. A return pipe 42 also leads from this valve to the pipe 34. The pumpis driven by suitable gearing 43 from the engine 21. By moving thisvalve to one position water is ad.- mittcd to the front end of thecylinder and allowed to pass out the rear end while moving the valve toits opposite position reverses Through the The cylinder thuseXte'nds'transthis operation. The pipe 37 is connected to an air chamberor release chamber 44 and in order to control the action of the pumpthere is provided a governor 45 of any preferred fluid governor type,the controlling pressure for the governor being received through thepipe 46 while the governor dis charge pipe is shown at 47 and the airchamber discharge pipe at 48. Inasmuch as no claim is made to thespecific construction of either the governor or the valve 39 in thepresent application it is deemed unnecessary to show the details ofthese parts.

Depending from the chassis are four guide le s or standards 49 whereinslide crosshcad s 50 and at each side these crossheads are connected inpairs by the load carrying angles 51. It will be observed that theseangles extend longitudinally of the machine close to and inside of thewheels at each side. Connected to each of these erossheads is a liftlink 52 which extends up through the upper part of the chassis and hasits upper end pivotally connected to the free .end of a rock arm 53.These rock arms are fixed to the shafts 29 and 32 respectively, theshaft 29 carrying two of the arms. These rock arms further extendoutwardly from the shafts so that when the piston moves in one directionall four rock arms will be simultaneously lifted. Consequently both ofthe load carrying angles will be simultaneously lifted. By properlypositioning the rock arms on their shafts the angles 51 are positionedparallel to each other and in the same horizontal plane. Under thesecircumstances it can he understood that moving the valve handle 40 tolifting position lifts all of the crosshcads simultaneously while movingit to lowering position pen niits all of these crossheads to drop simultaneously.

The front wheels form the steering wheels and the steering is affectedthrough the usual arms 54- connected by a tie rod :35, one of the arms54 forming part of a steering knuckle which is suitably connected in theusual manner to a steering wheel f-l'.

There has thus been provided a simple and ellicient device of the kinddescribed and for the purpose specified.

It is obvious that minor changes may be made in the form andconstruction of the invention without departing from the material spiritthcreof. it is not, therefore, desired to confine the invention to theexact form herein shown and described, but it is des red to include allsuch as properly come within the scope claimed.

flaring thus described the invention, what is claimed as new, is:

l. in a lumber carrier, :1 wheel supported chassis, load carryingmembers extending longitudinally of the chassis at each side thereof andbetween the wheels, guide standards depending from the upper part of thechassis, crosshcads slidable vertically in said standards. linksextending upwardly from said crossheads, a single hydraulic cylinder,shafts on'opposito sides of said chassis and extending longitudinallythereof, rock arms fixed on said shafts and having their free endsconnected to the upper ends of the links, gearing connecting the shafton opposite sides of the chassis to cause the shafts to rotate inunison, and an operative connection between one of the shafts and thecylinder.

2. In a lumber carrier, a wheel supported chassis, load carrying membersextending longitudinally of the chassis at each side thereof and betweenthe wheels, guide standards depending from the upper part of thechassis, crossheads slidable vertically in said standards, linksextending upwardly from said crossheads, a single hydraulic cylinder apair of aligned hearings on each side 0 the chassis. a single shaftjournalled in one pair of the bearings, stub shafts each supported inone of the remaining pair of bearings, gears fixed on the first shaft, agear fixed on each of the stub shafts and meshing with a respective gearon the first shaft, rock arms fixed on said shafts and having their freeends connected to the upper ends of said links, and an operativeconnection between said cylinder and the first shaft.

3. In a lumber carrier, a wheel supported chassis, load carrying membersextending longitudimilly of the chassis at each side thereof and betweenthe wheels, guide standards depending from the upper part of thechassis. crossheads slidable vertically in said standards, linksextending upwardly from said crosshcads, a single hydraulic cylinder,shafts on opposite sides of said chassis and extending longitudinallythereof, rock arms fixed on said shafts and having their free endsconnected to the upper ends of the links, gearing connecting the shaftson opposite sides of the chassis to cause the shafts to rotate inunison, a piston in said cylinder, a piston rod carried by said pistonand projerting' from said cylinder, a. rack carried by said rod, and agear fixed to one of said shafts and meshing with said rack.

-l. In a lumber carrier, a wheel supported chassis, load carryingmembers extending loiegilmlinally of the chassis at each side thereofand between the wheels, guide standards depending from the upper part ofthe chassis. crosshcads slidable vertically in said stamlards. linksextending upwardly from said cro sheads, a single hydraulic cylinder, apair of aligned bearings on each side of the chassis. a single shaftjournallcdin one pair of the bearings. stub shafts each supported in oneof the remaining pair of ill) ill-7 llll hearings. gears fixed on thefirst shaft, a gear fixed on each of the stub shafts and meshing wlth arespective gear on the first shaft. rock arms fixed on said shafts andhaving their free ends connected to the upper ends of said links, apiston in said cylinder, a piston rod carried by said piston andprojecting from said cylinder, a rack carried by said rod, and a gearfixed to the first mentioned shaft and meshing with said 10 rack.

In testimony whereof I aflix my signature.

CARL F. GERLINGER.

